Online Image Stitching

The Online Image Stitching Tool is a free, browser-based utility that requires no installation. Simply open the page and start merging images instantly. Whether you need to combine multiple screenshots into a single long image or arrange product photos side by side for comparison, this tool makes it effortless.

Key Features

• Horizontal Stitching: Arrange images left to right, automatically aligning all images to the tallest height. Ideal for comparison charts and banners.
• Vertical Stitching: Stack images top to bottom, aligning all images to the widest width. Perfect for long screenshots and content summaries.
• Adjustable Gap: Set the spacing between images from 0 to 999px to match your layout needs.
• Quality Control: Choose quality from 10 to 100. At 100, the image is exported as lossless PNG with transparent background support; below 100, it exports as JPEG to reduce file size.
• Drag-and-Drop Reordering: Rearrange images by dragging with mouse or touch on mobile — no need to re-upload.
• Multiple Upload Methods: Supports click-to-select, drag-and-drop, and Ctrl+V paste for quick image input.
• Privacy First: All processing is done locally in your browser. No data is sent to any server.

Use Cases

• Horizontally combine product images for e-commerce listings;
• Vertically merge chat screenshots into a single long image;
• Compare multiple design drafts side by side;
• Create composite images for social media posts;
• Export transparent PNG icons arranged in a row.

How to Use

1. Click the upload area or drag images in. Multiple images can be selected at once.
2. Choose horizontal or vertical stitching mode.
3. Set the gap between images and the export quality.
4. Click Re-stitch to preview the result.
5. Click Save Image to download the merged file.

FAQ

Q: Why is the file large when quality is set to 100?
A: At quality 100, the image is exported as lossless PNG. PNG files are larger than JPEG by nature, but offer the best quality and support transparent backgrounds.

Q: Does it work on mobile?
A: Yes. Mobile users can reorder images via touch drag. Note that some mobile albums only allow selecting one image at a time — just add images in multiple steps.

Q: What image formats are supported?
A: JPG, PNG, GIF, BMP, SVG, WebP, HEIC, AVIF, and more.

Q: Will my images be uploaded to a server?
A: No. All operations are performed locally in your browser. Your image data is never sent to any server.